River otters really do have more fun. They jostle, belly-slide across ice and snow and toboggan down embankments into water. Splish splash. Few mammals are known to frolic as much as otters do, said ...
A North American river otter (Lontra canadensis) wanders through a forest at the Smithsonian Environmental Research Center. Credit: Calli Wise, Smithsonian Environmental Research Center YouTube video: ...